Case:
Use two Seagate 500G hard disks to form an LVM, and use it on the Linux server. After a shutdown and maintenance server, the server cannot restart the problem.
Solution:
After the engineer got the hard disk, the hard disk was detected and found that one of the hard disks had a large number of bad disks, and the damaged position was exactly the most important super block position in the EXT3 file system.Use Winhex to use Winhex to use Winhex for fast sector -level mirrors, and use special devices to physical mirrors with a large number of bad discharge damaged hard disks, and read valid data to the greatest extent.After the mirror is completed, the LVM structure in the hard disk is analyzed, the sequence of the hard disk is known, and the starting position and size of the logic volume in the hard disk uses the data recovery software virtual reorganization data of our independently developed data.After the data virtual reorganization came out, it was found that some I-NODE was destroyed by the bad sector and a part of the data was lost, so it further fixed the EXT3 file system.Complete acceptance of recovered data.
